Exterior pictures of both Tim Hortons and Burger King(in the same frame) located across the street from one another on the Queensway in Etobicoke.

Vince Talotta | Toronto Star | Getty Images

Check out the companies making headlines midday Monday:

American Airlines — American Airlines rose 2.2% after Deutsche Bank upgraded the airline's stock to buy from hold. "American looks to be on the cusp of being a true deleveraging and free cash flow story. We've been waiting for this for a long time," Deutsche Bank analysts said in a note.

Diamond Offshore Drilling — The driller's stock dropped 6.3% despite the company reporting a lower-than-expected first-quarter loss. Diamond Offshore reported a loss of 53 cents per share, while FactSet had estimated a loss of 59 cents per share. The company reported better-than-expected revenues of $233.5 million, versus an estimate of $232.9 million.

Immunomedics — Shares of Immunomedics plunged 5.4% after the biopharmaceutical company announced announced its chief medical officer, Dr. Robert Iannone, is leaving.

Veoneer — Shares of the radar and vision systems software company plummeted nearly 17% after the company said it will seek up to $500 million in funding to deal with a slowdown in its driverless car business.

Momo — Shares of Momo fell nearly 7% after the Chinese social media company said some mobile app stores have removed its dating app Tantan on direction of governmental authorities in China, according to a press release. The company said it's communicating with the government to restore Tantan as soon as possible.

Target — Target shares climbed 0.9% after a Barclays analyst upgraded the stock to overweight from equal weight and raised his price target to $115 a share from $85. "We have now decided with the pullback in the stock due to recent Amazon fears, our expected downside from this near-term view is meaningfully derisked," the analyst said in a note.